Grades are a hygiene check, not a security guarantee.

MCP, MCP server

MainBook Bank Statement Converter

Convert PDF bank statements to checked Excel, CSV or JSON with balance validation.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit ed3e9470a4d1, unchanged since the check below.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    src/mainbook_mcp/credentials.py, line 91 return Path.home() / ".config" / "mainbook" / "credentials.json"

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Note

    README documents an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 85

    `curl -LsSf https://astral.sh/uv/install.sh | sh`. It fetches and runs the published package, so

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    src/mainbook_mcp/__main__.py, line 162

    environment_key = os.getenv("MAINBOOK_API_KEY", "").strip()

    src/mainbook_mcp/__main__.py, line 215

    environment_key_present = bool(os.getenv("MAINBOOK_API_KEY", "").strip())

    src/mainbook_mcp/credentials.py, line 91

    return Path.home() / ".config" / "mainbook" / "credentials.json"

    Show more

    src/mainbook_mcp/__main__.py, line 223

    if os.getenv("MAINBOOK_API_KEY", "").strip():

    src/mainbook_mcp/server.py, line 659

    fallback = os.getenv("MAINBOOK_API_KEY", "").strip()

    .dockerignore, line 10

    .git/

    .dockerignore, line 11

    .env

    .gitignore, line 12

    *.egg-info/

    .gitignore, line 13

    .env

    README.md, line 54

    installed and working. Otherwise it uses `~/.config/mainbook/credentials.json` with private

    README.md, line 313

    `~/.config/mainbook/credentials.json` is replaced atomically inside a mode `0700` directory and

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit ed3e9470a4d1. README documents an installer that pipes a download into a shell. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: ed3e9470a4d13fe83acbd2240fd6ad8102b84218

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen